Blasting Sand get Blown around?? - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 09-07-2012, 04:31 PM Thread Starter
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Blasting Sand get Blown around??

Hello fellow TPT users! I just bought 50lbs of black diamond (20-40, the heavier kind) blasting sand. I've heard good stuff about it. I just have one question, does it get blown around if you don't cover the output of a power filter? I'll be adding 3" of substrate to a 20L and will have 2x Aquaclear20's on the tank. I'm wondering if I need to put something to cover the sand where the output hits, or is it heavy enough to not get blown away?

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post #2 of 5 (permalink) Old 09-07-2012, 04:43 PM Thread Starter
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As reference, when I used to use play sand that stuff would get blown around SO BAD. I'd have to keep repiling sand where the filter output was

Fish Shrimp tanks are like cups of coffee, one is never enough.

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post #3 of 5 (permalink) Old 09-07-2012, 07:25 PM
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A 20 long is pretty shallow.
AC20s can move quite a bit of water.
I would make sure the tank is kept full so the water from the filters sheets across the top, instead of diving straight down.

Other than that, blasting sand is heavier than play sand, the particles are a bit larger. It will probably still move around, though. Can you put some driftwood or a few rocks in the worst spots?
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post #4 of 5 (permalink) Old 09-07-2012, 09:06 PM
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I've got a 20L with a Marineland Penguin 200 on it, using the 20-40 black diamond blasting media for substrate. I haven't noticed any blowing around of the substrate. However directly below the output is pretty heavily hardscapped/planted, but even the close sections that are relatively bare, I don't see any movement of the substrate.

So anecdotal and all that, but I've had good luck with it staying in place.
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post #5 of 5 (permalink) Old 09-07-2012, 10:25 PM Thread Starter
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Alrights thanks! I'll put some under each ac20 to make sure the sand doesn't get blown.

Fish Shrimp tanks are like cups of coffee, one is never enough.

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